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Natural Gas Proved Reserves, Wet After Lease Separation
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2013 2014 2015 2016 2017 2018 View
History
Proved Reserves as of Dec. 31
3,267 2,695 1,735 1,945 2,148 2,049 1979-2018
Adjustments
-103 -187 22 -62 -107 240 1979-2018
Revision Increases
474 239 56 165 331 34 1979-2018
Revision Decreases
261 418 872 157 58 141 1979-2018
Sales
21 2 412 36 4 239 2000-2018
Acquisitions
17 0 406 455 190 164 2000-2018
Extensions and Discoveries
      2 0 0 2016-2018
Extensions
3 9 29 -- -- -- 1979-2018
New Field Discoveries
0 0 0 -- -- -- 1979-2018
New Reservoir Discoveries in Old Fields
62 0 0 -- -- -- 1979-2018
Estimated Production
267 213 189 157 149 157 1979-2018
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: W -- Individual state volumes are withheld to avoid disclosure of operator-level reserves data, due to statistical precision requirements, or due to other data quality reasons. The individual state volumes are included in the U.S. Total volume.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/12/2019
Next Release Date: 11/20/2020